Re: find-directory-p always returns nil in locate-mode on windows xp

[Peter Breton]

I just tested removing the default-directory line and
locate.el seems to work fine. I believe that it uses
dired-move-to-filename-regexp to determine the file
name, so default-directory would be ignored in any
case, and as best I can recall, it was only set to get
dired-mode to work properly.

The value of default-directory is now "~/".

Peter

--- Eli Zaretskii <address@hidden> wrote:
> > Date: Fri, 21 May 2004 13:29:19 -0500 (CDT)
> > From: Luc Teirlinck <address@hidden>
> > 
> > Jason suggested (expand-file-name "/").
> 
> I was under the impression that Jason suggested
> (expand-file-name "~/"),
> but perhaps I misunderstood.
> 
> > I _guess_ from your comments above that this does
> not work either.
> 
> I don't know, I didn't have the time to check.
> 
> The problem that bothers me is what happens when the
> value of
> default-directory refers to a drive that is
> different from the drive
> of files in the *Locate* buffer.  Since locate.db
> could (and does, in
> many practical situations) contain file names from
> several drives, we
> would have a Dired buffer where the top-level
> directory is "c:/", say,
> but some file names begin with a "d:/" or "f:/". 
> Will locate.el and
> the Dired features it relies upon still work in such
> a situation?
> 
> > I guess that "what was decided long ago" refers
> to:
> > 
> >   if (! STRINGP (default_directory))
> >     {
> > #ifdef DOS_NT
> >       /* "/" is not considered a root directory on
> DOS_NT, so using "/"
> >        here causes an infinite recursion in, e.g.,
> the following:
> > 
> >             (let (default-directory)
> >               (expand-file-name "a"))
> > 
> >                To avoid this, we set default_directory to
> the root of the
> >                 current drive.  */
> >       extern char *emacs_root_dir (void);
> > 
> >       default_directory = build_string
> (emacs_root_dir ());
> > #else
> >       default_directory = build_string ("/");
> > #endif
> >     }
> 
> Yes, that's what I had in mind.
> 
> >    Again, I don't think Emacs on Windows should
> have any buffer whose
> >    default-directory is "/".
> > 
> > Yes, but I suppose you read the comment below,
> which Jason already
> > referred to.
> 
> Of course, I read them; thus my concern described
above.



        
                
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